(A) The branch supply pipes to all cooking stoves, ranges and water heaters (circulating, instantaneous and automatic) shall be same size or larger than inlet connection of above mentioned appliances and runs from mains or branch supply line to appliance shall not be less than one-half inch. Risers in buildings must in no case be less than one-half inch.
(B) All house piping shall be securely fastened to floor joists or sills with either galvanized pipe straps or pipe hooks, or with perforated pipe straps, and in a manner as to prevent pipe from sagging and becoming trapped. The following maximum spacing of supports shall be used:
3/8 inch or l/2 inch pipe | 6 feet |
3/4 inch or 1 inch pipe | 8 feet |
1-1/4 inch or larger pipe (horizontal) | 10 feet |
(C) When in running pipe it is necessary to cross through wood joist or beams, they shall be notched as little as possible, but never to a depth of more than one-fifth of the depth of the timber. This notching shall be as close as possible to a point of support of the timber and should in no case be further from support than one-sixth of the total unsupported span of the timber. When feasible the piping should run as that only timbers having the shortest spans shall be cut.
(D) No gas pipe shall be run closer than six inches to any electric wires unless the electric wires be inside of conduit.
(E) When necessary to connect two sizes of pipe, a reducing coupling shall be used. No bushings permitted.
(F) Where extensions to house piping are made, care must be taken to break pipe where the rule for size can be maintained.
(G) When a house piping line is laid underground, pipe of not less than one-inch diameter shall be used and must be run in a straight line.
(H) Piping shall not be laid in cinder concrete, cinders or any corrosive material unless pipe is covered with a coating and wrapped with felt paper, equal to specifications used by the gas company.
(I) Piping from house to property line shall have not less than 12 inches cover and the ditch shall remain open until inspected.
(J) Gas lines must not be laid in same trench with sewer line and must be located not less than three feet from sewer line.
(K) White lead or other suitable thread lubricant shall be used sparingly and applied only to the male threads in making up joints or gas house piping.
(L) Each and every gas stove, range, cooking stove, water heater and other gas consuming appliance shall be provided with a lever handled safety stop cock located in the riser above the floor and below the union, at the appliance. The cock shall be readily accessible at all times.
(M) Gas connection to ranges, cooking stoves, water heaters and other appliances shall be made by metal connections or AGA approved hose connections.
(N) No stove, range, cooking stove, water heater or other appliance nor any portion of same which comes in direct contact with the gas flames or hot gases shall be placed less than ten inches from any woodwork or wooden lath and plaster partition, unless approved by the American Gas Association for closer setting.
(O) No gas stove or water heater shall be directly connected with a flue that serves another apartment, except that flues from several apartments may be united in the attic. See division (G) above.
(P) Furnaces and water heaters must be provided with vent and flue connection on the furnace or water heater and extend to open air at least two feet above the crown of the roof and terminate with cap.
(Q) Where more than one appliance is vented with a flue, the area of the flue shall be equal to the combined areas of the vents entering into it.
(R) Ranges, hot plates and the like, used in hotels, restaurants and hamburger stands, where gas is used for fuel, must be provided with canopies properly vented into brick, tile or metal flues extending to open air at least two feet above the crown of the roof.
(S) Vents to gas appliances, concealed inside of partitions, under floors, or enclosed in any manner so that the vent pipes are in contact with wood, shall be air tight and shall be double wall metal with an air space or asbestos cement pipe.
(T) Vent pipes in attics may connect with a chimney flue; or may extend through the roof to open air at least two feet above the crown of the roof and terminate with a screened cap. The vent pipes in attics and above roof shall be of at least No. 22 gauge galvanized iron. Exposed vent pipes in rooms may be No. 26 gauge galvanized or black iron.
(U) Wood partitions through which vent pipes pass must be protected by a thimble with a proper air space, except that no vent pipe shall pass through any closet or pantry used for the storage of clothing, household goods or any combustible material, unless properly insulated as set out in division (S) above.
(V) Water heaters and gas appliances having pilot burners must be provided with down draft devices above the fixture in the vent, near the appliances.
(Ord. 183, passed 9-9-1957)